/**
 * author: Di (微信小程序开发工程师)
 * organization: WeAppDev(微信小程序开发论坛)(http://weappdev.com)
 *               垂直微信小程序开发交流社区
 * 二次修改：丸子小程序 By Chi
 * github地址: https://github.com/icindy/wxParse
 * for: 微信小程序富文本解析
 * detail : http://weappdev.com/t/wxparse-alpha0-1-html-markdown/184
 */

/**
 * utils函数引入
 **/
import showdown from './showdown.js';
import HtmlToJson from './html2json.js';
/**
 * 配置及公有属性
 **/
var realWindowWidth = 0;
var realWindowHeight = 0;
wx.getSystemInfo({
  success: function (res) {
    realWindowWidth = res.windowWidth
    realWindowHeight = res.windowHeight
  }
})
/**
 * 主函数入口区
 **/
function wxParse(bindName = 'wxParseData', type='html', data='<div class="color:red;">数据不能为空</div>', target,imagePadding) {
  var that = target;
  var transData = {};//存放转化后的数据
  if (type == 'html') {
    transData = HtmlToJson.html2json(data, bindName);
 //   console.log(JSON.stringify(transData, ' ', ' '));
  } else if (type == 'md' || type == 'markdown') {
    var converter = new showdown.Converter();
    var html = converter.makeHtml(data);
    transData = HtmlToJson.html2json(html, bindName);
 //   console.log(JSON.stringify(transData, ' ', ' '));
  }
  transData.view = {};
  transData.view.imagePadding = 0;
  if(typeof(imagePadding) != 'undefined'){
    transData.view.imagePadding = imagePadding
  }
  var bindData = {};
  bindData[bindName] = transData;
  that.setData(bindData)
  that.wxParseImgLoad = wxParseImgLoad;
  that.wxParseImgTap = wxParseImgTap;
  that.wxParseAttachment = wxParseAttachment;
  that.wxParseToMiniProgram = wxParseToMiniProgram;
  that.wxParseToOfficialAccounts = wxParseToOfficialAccounts;
  that.wxParseOpenDocument = wxParseOpenDocument;
  that.wxParseProductDetail = wxParseProductDetail;
  that.wxParseWeMiniStore = wxParseWeMiniStore;
}
// 图片点击事件
function wxParseImgTap(e) {
  var that = this;
  var nowImgUrl = e.target.dataset.src;
  var tagFrom = e.target.dataset.from;
  if (typeof (tagFrom) != 'undefined' && tagFrom.length > 0) {
    wx.previewImage({
      current: nowImgUrl, // 当前显示图片的http链接
      urls: that.data[tagFrom].imageUrls // 需要预览的图片http链接列表
    })
  }
}

/**
 * 图片视觉宽高计算函数区 
 **/
function wxParseImgLoad(e) {
  var that = this;
  var tagFrom = e.target.dataset.from;
  var idx = e.target.dataset.idx;
  if (typeof (tagFrom) != 'undefined' && tagFrom.length > 0) {
    calMoreImageInfo(e, idx, that, tagFrom)
  } 
}
// 假循环获取计算图片视觉最佳宽高
function calMoreImageInfo(e, idx, that, bindName) {
  var temData = that.data[bindName];
  if (!temData || temData.images.length == 0) {
    return;
  }
  var temImages = temData.images;
  //因为无法获取view宽度 需要自定义padding进行计算，稍后处理
  var recal = wxAutoImageCal(e.detail.width, e.detail.height,that,bindName); 
  // temImages[idx].width = recal.imageWidth;
  // temImages[idx].height = recal.imageheight; 
  // temData.images = temImages;
  // var bindData = {};
  // bindData[bindName] = temData;
  // that.setData(bindData);
  var index = temImages[idx].index
  var key = `${bindName}`
  for (var i of index.split('.')) key+=`.nodes[${i}]`
  var keyW = key + '.width'
  var keyH = key + '.height'
  that.setData({
    [keyW]: recal.imageWidth,
    [keyH]: recal.imageheight,
  })
}

// 计算视觉优先的图片宽高
function wxAutoImageCal(originalWidth, originalHeight,that,bindName) {
  //获取图片的原始长宽
  var windowWidth = 0, windowHeight = 0;
  var autoWidth = 0, autoHeight = 0;
  var results = {};
  var padding = that.data[bindName].view.imagePadding;
  windowWidth = realWindowWidth-2*padding;
  windowHeight = realWindowHeight;
  //判断按照那种方式进行缩放
  // console.log("windowWidth" + windowWidth);
  if (originalWidth > windowWidth) {//在图片width大于手机屏幕width时候
    autoWidth = windowWidth;
    // console.log("autoWidth" + autoWidth);
    autoHeight = (autoWidth * originalHeight) / originalWidth;
    // console.log("autoHeight" + autoHeight);
    results.imageWidth = autoWidth;
    results.imageheight = autoHeight;
  } else {//否则展示原来的数据
    results.imageWidth = originalWidth;
    results.imageheight = originalHeight;
  }
  return results;
}

function wxParseTemArray(temArrayName,bindNameReg,total,that){
  var array = [];
  var temData = that.data;
  var obj = null;
  for(var i = 0; i < total; i++){
    var simArr = temData[bindNameReg+i].nodes;
    array.push(simArr);
  }

  temArrayName = temArrayName || 'wxParseTemArray';
  obj = JSON.parse('{"'+ temArrayName +'":""}');
  obj[temArrayName] = array;
  that.setData(obj);
}

function wxParseAttachment(e) {
  console.warn("附件页面链接", e.currentTarget.dataset.src)
}

function wxParseToMiniProgram(e) {
	let appid = e.currentTarget.dataset.appid
	let path = e.currentTarget.dataset.path
	wx.navigateToMiniProgram({
		appId: appid,
		path: path
	})
}

function wxParseToOfficialAccounts(e) {
	let url = e.currentTarget.dataset.url
	wx.navigateTo({
		url: "/pages/view/view?url=" + url
	})
}

function wxParseOpenDocument(e) {
  let url = e.currentTarget.dataset.url
  wx.showLoading({
    title: '正在下载...',
    mask: true
  })
  wx.downloadFile({
    url: url,
    success: function (res) {
      wx.hideLoading()
      const filePath = res.tempFilePath
      wx.showLoading({
				title: '正在打开文档',
				mask: true
			})
			wx.openDocument({
				filePath: filePath,
				success: function (res) {
					console.log(res)
					wx.hideLoading()
					wx.showToast({
						title: '打开文档成功',
						icon: 'success',
						duration: 1000
					})
				},
				fail: function (err) {
					console.log(err)
					wx.hideLoading()
					wx.showToast({
						title: '打开文档失败',
						icon: 'loading',
						duration: 1000
					})
				}
			})
    },
    fail: function (err) {
      console.log(err)
      wx.hideLoading()
      wx.setClipboardData({
				data: url,
				success: function (res) {
					wx.getClipboardData({
						success: function (res) {
							wx.showToast({
								title: '链接已复制',
								image: '/images/link.png',
								duration: 2000
							})
						}
					})
				}
			})
    }
  })
}

function wxParseProductDetail(e) {
  let id = e.currentTarget.id
  wx.navigateTo({
		url: "/pages/shop/detail?id=" + id
	})
}

function wxParseWeMiniStore(e) {
  let id = e.currentTarget.id
  wx.navigateTo({
    url: 'plugin-private://wx34345ae5855f892d/pages/productDetail/productDetail?productId=' + id,
  });
}

/**
 * 配置emojis
 * 
 */

/* function emojisInit(reg='',baseSrc="/wxParse/emojis/",emojis){
   HtmlToJson.emojisInit(reg,baseSrc,emojis);
} */

module.exports = {
  wxParse: wxParse,
  wxParseTemArray:wxParseTemArray,
  //emojisInit:emojisInit
}


